Spring bed-bottom



(No Model.)

J. BJBENJAMIN.

SPRING BED BOTTOM. No. 373,513.

i Cf, 22a/77127 awww@ `UNITED STATES PATENT Fries.

JOSEPH E. BENJAMIN, OF NEAR REYNOLDS, NEBRASKA.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 373.513, dated November 22, 1887.

Application filed August 20, 1887 To all whom it may concern:

Be it known that I, J osEPH E. BENJAMiN, a citizen of the United States, residing near Reynolds, in the county of Thayer and State of Nebraska, have invented certain new and useful Improvements in Spring l3edl3ottoms; and Ido declare the following to be a full,clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to bed-bottoms, and has for its object the construction of a bedbottom of fabric which will not sag or tilt to one side when the weight is placed near the edge.

The improvement consists in having said bottom of fabric re-enforced by lever or levers which are pivotally supported at one end and have springs supporting their other ends, said springs being vertically adjustable to regulate the resistance of the lever or levers to the load placed thereon.

rlhe improvement further consists in the novel construction and arrangement of parts, which Will be more fully hereinafter set forth and claimed,and shown in the annexed drawings, in which- Figure l is a perspective view of a bed-bottom embodying my invention; Fig. 2, a vertical longitudinal section on the line X X of Fig. l; Fig. 3, a detail perspective View showing the means for adjusting the fulcruni or pivotal support of the lever, and Fig. 4 a plan view of a modified form.

The frame of the bed is composed of the head and foot sections A and B and the side rails, C, respectively. rIlhe fabric D is stretched between the cross-bars E and F, and its edges are free. The cross-bar F has journals f at each end, which enter openings in the inner ends of the bolts G, seated in the side rails. The outer ends of the bolts are threaded and pass through the headsection A and receive the nuts g, by which the bolts are drawn out when it is desired to increase the tension of the fabric.

The lever J is secured at one end to the Serial No. 247.449. (No model.)

cross-bar F, and is supported at its other end on the spiral spring K, which rests on the bar have vertical slots m, and through these slots pass set-screws m', which enter the side rails and hold the bar at any desired position.

Instead of a single lever, as shown in Fig. 1, which is centrally disposed, there may be a greater number,which may be differently arranged, as shown in Fig. 4, which shows four levers, one lever being located at each corner, and the levers at one end extend toward the levers at the opposite end of the bed-bottom. These levers J will be supported at one of their ends on springs, and at their opposite ends in a manner similar to lever J. The free end or ends of the levers bear upward against the fabric, D, of the bottom with a greater or less force, according to the tension of the springs which support them,which tension can be regulated by moving the bar carrying the springs up or down, as previously intimated.

By having the lever or levers arranged beneath the top D of the bed said top is re-enforced and prevented from sagging, as part of the load is sustained by the lever. Furthermore, as the lever yields under the load placed thereon thesaid top slackens and accommodates itself to the form of the load,and permits the greater portion of the load to be sustained by the lever. The lever likewise prevents any undue straining ofthe fabric or wire top incident to a person jumping thereon by cushioning the force of the shock.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-` I l. A bed-bottom composed of a frame, a fabric stretched over said frame, a lever lo cated beneath the fabric andjournaled at its outer end, and having its inner end bearing against the fabric, the spring for supporting the inner end of the lever, the har L, the slotted plates M, and the set-screws m', substantially as and for the purpose described.

2. The combination, with the frame, the bar located at one end and adjustable lengthwise of the frame,and the fabric secured at its ends to said cross-bar and the opposite end of the frame, of the lever secured at one end to the IOO aforesaid cross-bar, the spring, and thead- I supportingbar L, adj ustably connected with justable bar carrying said spring, substanthe frame, substantially asand for thepurpose tially as described.

3. The combination of the frame, the bar F, 5 ,having journals at each end, the bolts G, forniing bearings for thejournals and threaded on their outer ends, the nuts g, the fabric c0nneeted at one end with bar F, and at its other end With the frame, the lever fastened at its ro inner end to the bar F, the spring, and the described.

4 In testimony whereof I affix my signature in Witnesses:

H. L. BENJAMIN, W. C. PARKER. 

